is 2 697820191 - 1
has 210064810 decimal digits
takes 22,622.620 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2680.085455.8824%----0.085455.8824%0.0000%
PrimeNet280350.902162.5000%2600000180000000576.55865.6318%927.460764.6119%2.1119%
GPU722845,614.437264.2857%4000000180000000638.78364.2187%6,253.220865.7924%1.5067%
Difference-16-5,614.3518-8.4034%-4000000-180000000-638.7836-4.2187%-6,253.1354-9.9100%-9.9100%

Known prime factors (1 factor, 67.3 bits, 0.00000965% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6978201911823941612671606541032167.306130688509461
3 × 23 × 41 × 46196009		2014-09-1741461960090.0495118.31220.97

P-1 results:
No P-1 results for M697820191


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-03-17T00:00:00lindedv4_computers261262--0.000--
2010-07-18T11:40:00Architects Cubedm1_34263264--0.003--
2012-01-25T09:38:00laleraManual testing264265--0.005--
2013-11-23T03:16:00sasakiManual testing265266--0.011--
2014-09-17T09:25:00sasakiManual testing26626867.306210.02846,3600.058
2022-08-10T19:30:08LordJuliusManual testing2126867.306210.04946,3600.101


ECM factoring results:
No ECM results for M697820191


Lucas-Lehmer results:
No L-L results for M697820191


PRP results:
No PRP results for M697820191


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
266
265
264
262
250
260
270
280
290
2100
Last modified: 2022-08-10T19:30:08+00:00